Edition of Bríatharogaim, including glossing and commentary, from MSS RIA 23 P 12, NLI G 53, TCD H 3. 18, and YBL; with translation and notes. Discussion of each of the names: Beithe, Luis, Fern, Sail, Nin, (h)Úath, Dair, Tinne, Coll, Cert, Muin, Gort, Gétal, Straiph, Ruis, Ailm, Onn, Ú(i)r, Edad (?), Idad (?), Ébad (?), Ó(i)r, Uil(l)en(n), Pín (Iphín), Iphín (Pín), Emancholl.
Discusses in particular the transliteration of the letter Fern, and the Primitive Irish phonemic value represented by the letters Gétal, S(t)raif and (h)Úath.